Table 3.
Pairwise Cohen’s Kappa agreement among the six serological assays (95% confidence intervals and level of significance). All data were statistically significant with p < 0.001.
| DiaSorin Trimeric S IgG |
Snibe S RBD IgG |
Roche S RBD tAb |
Mindray S RBD IgG |
Euroimmun S1 IgG |
|
|---|---|---|---|---|---|
| Thermo Fisher S1 IgG |
k = 0.822 95 %CI = 0.5809;1.00 |
k = 0.580 95 %CI = 0.215;0.945 |
k = 0.711 95 %CI = 0.4023;1.00 |
k = 0.711 95 %CI = 0.4023;1.00 |
k = 0.822 95 %CI = 0.5809;1.00 |
| DiaSorin Trimeric S IgG |
k = 0.739 95 %CI = 0.3936;1.00 |
k = 0.883 95 %CI = 0.6566;1.00 |
k = 0.883 95 %CI = 0.6566;1.00 |
k = 1.00 | |
| Snibe S RBD IgG |
k = 0.851 95 %CI = 0.6138;1.00 |
k = 0.851 95 %CI = 0.565;1.00 |
k = 0.739 95 %CI = 0.3936;1.00 |
||
| Roche S RBD tAb |
k = 1.00 |
k = 0.883 95 %CI = 0.6566; 1.00 |
|||
| Mindray S RBD IgG |
k = 0.833 95 %CI = 0.6566; 1.00 |